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Influence of Intermediate Principal Stress on Undrained Behavior of Intact Clay under Pure Principal Stress Rotation [PDF]
Mathematical Problems in Engineering, 2013 This study presents the accumulations of the excess pore water pressure and the deformation as well as the noncoaxial behavior of intact soft clay subjected to pure principal stress rotation. Series of tests were carried out by using a dynamic hollow cylinder apparatus to highlight the influence of intermediate principal stress parameterb. It was found
Jian Zhou +3 more
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A novel elastoplastic model for Yunnan sandstone under poly-axial loading
International Journal of Mining Science and Technology, 2023 The lack of understanding of plastic hardening (softening) laws, especially under anisotropic stress conditions, results in inappropriate geotechnical management.
Xu Li +5 more
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Applied Sciences, 2018 Since the effect of intermediate principal stress on the strength of pavement materials is not entirely clear so far, a proprietary true triaxial apparatus was developed to simulate the spatial status of principal stresses to conduct compressive strength
Hong-xin Guan +4 more
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Petroleum, 2021 In this study, the Discrete Element Method (DEM) was employed to investigate numerically the effects of hydrate cementation and intermediate principal stress on the stress-dilatancy relation of grain-cementing type methane hydrate-bearing sediment (MHBS)
An Zhang, Mingjing Jiang, Wenhao Du
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Effect of Principal Stress Rotation and Intermediate Principal Stress Changes on the Liquefaction Resistance and Undrained Cyclic Response of Ottawa Sand [PDF]
Journal of Geotechnical and Geoenvironmental Engineering, 2022 In laboratory testing, the liquefaction resistance of sands is typically evaluated using cyclic triaxial and simple shear tests. These tests cannot be used in a rigorous manner to systematically assess the effects of principal stress rotation and intermediate principal stress changes on the undrained cyclic response of sands.
Erdem O. Tastan, J. Antonio H. Carraro
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Underground Space, 2020 The out-of-plane stress is sometimes the major or intermediate principal stress in a circular tunnel opening. The influences of the out-of-plane stress and axial strain are often neglected in the stability analyses of tunnel excavation, which can induce ...
Jinfeng Zou, Lu Liu, Mingyao Xia
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Influence of Intermediate Principal Stress on Plastic Flow
Transactions of the Japan Society of Mechanical Engineers, 1959 Let σ1, σ2 and σ3 (σ1>σ2>σ3) be the principal stresses, and σ3=0. Taking σ1 and σ2 as the axes, the criterion of plastic flow is not expressed by a smooth curve by the authors' theory, but a curve composed of two straight lines which intersect at σ1=4σ2 in the range between tension and pure shear. Experiments were carried out.
NAKANISHI, Fujio, SATO, Yasuo
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Meikuang AnquanIn order to investigate the effect of intermediate principal stress on the progressive damage and permeability characteristics of unloading sandstone, the unloading test was carried out under different intermediate principal stress conditions based on a ...
Jiahui DU +4 more
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Case Studies in Thermal EngineeringTriaxial compression tests were conducted on frozen sandy soils under a constant minimum principal stress (σ3 = 1.6 MPa) and various intermediate principal stresses (σ2 = 1.6, 3.4, 5.2, 7.0, 8.8, 9.8 MPa).
Kun Huang +6 more
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Advances in Civil Engineering, 2023 Tunnel opening or excavation in the strain-softening rock masses primarily leads to initial stress release and rock deformation. The increasing plastic shear strain induces a nonlinear variation of dilatancy in rock masses. Therefore, tunnel stability is
Xiuling Wang
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